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Merge back earlier cpufreq changes for v4.8.

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This commit is contained in:
Rafael J. Wysocki
2016-06-13 23:33:17 +02:00
parent 5edb56491d f6709b8aa7
commit bb4b9933e2
24 changed files with 407 additions and 600 deletions
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43
kernel/sched/cpufreq_schedutil.c
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@@ -394,7 +394,7 @@ static int sugov_init(struct cpufreq_policy *policy)
return ret;
}
static int sugov_exit(struct cpufreq_policy *policy)
static void sugov_exit(struct cpufreq_policy *policy)
{
struct sugov_policy *sg_policy = policy->governor_data;
struct sugov_tunables *tunables = sg_policy->tunables;
@@ -412,7 +412,6 @@ static int sugov_exit(struct cpufreq_policy *policy)
mutex_unlock(&global_tunables_lock);
sugov_policy_free(sg_policy);
return 0;
}
static int sugov_start(struct cpufreq_policy *policy)
@@ -444,7 +443,7 @@ static int sugov_start(struct cpufreq_policy *policy)
return 0;
}
static int sugov_stop(struct cpufreq_policy *policy)
static void sugov_stop(struct cpufreq_policy *policy)
{
struct sugov_policy *sg_policy = policy->governor_data;
unsigned int cpu;
@@ -456,53 +455,29 @@ static int sugov_stop(struct cpufreq_policy *policy)
irq_work_sync(&sg_policy->irq_work);
cancel_work_sync(&sg_policy->work);
return 0;
}
static int sugov_limits(struct cpufreq_policy *policy)
static void sugov_limits(struct cpufreq_policy *policy)
{
struct sugov_policy *sg_policy = policy->governor_data;
if (!policy->fast_switch_enabled) {
mutex_lock(&sg_policy->work_lock);
if (policy->max < policy->cur)
__cpufreq_driver_target(policy, policy->max,
CPUFREQ_RELATION_H);
else if (policy->min > policy->cur)
__cpufreq_driver_target(policy, policy->min,
CPUFREQ_RELATION_L);
cpufreq_policy_apply_limits(policy);
mutex_unlock(&sg_policy->work_lock);
}
sg_policy->need_freq_update = true;
return 0;
}
int sugov_governor(struct cpufreq_policy *policy, unsigned int event)
{
if (event == CPUFREQ_GOV_POLICY_INIT) {
return sugov_init(policy);
} else if (policy->governor_data) {
switch (event) {
case CPUFREQ_GOV_POLICY_EXIT:
return sugov_exit(policy);
case CPUFREQ_GOV_START:
return sugov_start(policy);
case CPUFREQ_GOV_STOP:
return sugov_stop(policy);
case CPUFREQ_GOV_LIMITS:
return sugov_limits(policy);
}
}
return -EINVAL;
}
static struct cpufreq_governor schedutil_gov = {
.name = "schedutil",
.governor = sugov_governor,
.owner = THIS_MODULE,
.init = sugov_init,
.exit = sugov_exit,
.start = sugov_start,
.stop = sugov_stop,
.limits = sugov_limits,
};
static int __init sugov_module_init(void)